Features Implement Shader Model 6.8 min-spec SV_StartInstanceLocation SV_StartVertexLocation WaveSize range Implement Vulkan texturing catch-up features (esoteric comparison sampling functions) Implement interop for OpenVR / OpenXR on Proton Correctly support NULL index buffers with VK_KHR_maintenance6. Implement VK_MESA_image_alignment_control. Reduces memory bloat on AMD cards in particular. Fixes Reimplement VK_NV_low_latency2 to fix some issues with heavy stuttering caused by non-monotonic frame IDs. run, but low-latency will not kick in as expected. Explicitly disable variable-rate shadin